|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ПсковГУ |
||
Pseudorapidity distributions of charged hadrons in lead-lead collisions at √sNN= 5.36 TeVстатья Исследовательская статья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Boos E.E., Demiyanov A., Ershov A.A., A Gribushin, Khein L., Kodolova O.L., Korotkikh V.L., Obraztsov S.V., Petrushanko S.V., Savrin V.I., Snigirev A.M., Vardanyan I., CMS Collaboration
- Журнал: Physics Letters B
- Том: 861
- Год издания: 2025
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Номер статьи: 139279
- DOI: 10.1016/j.physletb.2025.139279
- Аннотация: The pseudorapidity (𝜂) distributions of charged hadrons are measured using data collected at the highest ever nucleon-nucleon center-of-mass energy of √𝑠NN = 5.36 TeV for collisions of lead-lead ions. The data were recorded by the CMS experiment at the LHC in 2022 and correspond to an integrated luminosity of 0.30 ± 0.03 μb−1. Using the CMS silicon pixel detector, the yields of primary charged hadrons produced in the range |𝜂| < 2.6 are reported. The evolution of the midrapidity particle density as a function of collision centrality is also reported. In the 5% most central collisions, the charged-hadron 𝜂 density in the range |𝜂| < 0.5 is found to be 2032 ± 91 (syst), with negligible statistical uncertainty. This result is consistent with an extrapolation from nucleus-nucleus collision data at lower center-of-mass energies. Comparisons are made to various Monte Carlo event generators and to previous measurements of lead-lead and xenon-xenon collisions at similar collision energies. These new data detail the dependence of particle production on the collision energy, initial collision geometry, and the size of the colliding nuclei.
- Добавил в систему: Петрушанко Сергей Владимирович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|